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AE2-147 Transition Sort Retool Results -- Reprioritized to Transition Cycle #1

v1.00 released 2023-12-14 11:14

Swamp 230 kV

90.0 MW Capacity / 150.0 MW Energy

Introduction

In accordance with Tariff Part VII, Subpart B, section 304, PJM performed load flow analysis (Transition Sort Retool) on all AE1 through AG1 projects that have met eligibility requirements according to Tariff, Part VII, Subpart B, section 303. The purpose of this study is to determine whether a project would be classified as eligible for the Expedited Process (Fast Lane) or if it would be reprioritized to be studied as part of Transition Cycle #1 (TC1) using the criteria from the Expedited Process Eligibility section of Tariff Part VII, section 304. This is not a System Impact Study report.

Below are the results of the study, details of how the study was performed, criterion used in the evaluation of the Expedited Process vs. TC1 determination, and next steps in the interconnection process for your project.

Transition Cycle #1:

The AE2-147 project has not met the Expedited Process Eligibility requirements in Tariff Part VII, Subpart B, section 304 and will therefore be reprioritized to Transition Cycle #1. Please see "Transition Cycle #1 Rules" below.

Transition Sort Retool Study Process and Criteria:

In order to determine Expedited Process vs. Transition Cycle #1 classification, projects which met the Transition Eligibility requirements from Tariff Part VII, Subpart B, section 303 were studied on the base case model that was used for the original System Impact Study analysis. Both a summer peak and light load load flow analysis were performed. Projects that have cost allocation eligibility or are identified as the first to cause a system violation which requires the need for a Network Upgrade with a total estimated cost greater than $5 million will be reprioritized to Transition Cycle #1. All other projects will be eligible for the expedited procedures set forth in Tariff Part VII, Subpart B, section 304 (B).

Expedited Process Eligibility: OATT Tariff Part VII, section 304:

A project is not eligible for the expedited process if it has cost allocation eligibility or is identified as the first to cause, as determined according to Tariff, Part VI, section 217.3, for a Network Upgrade which has a total estimated cost of greater than $5,000,000. Such cost estimate will be based on Transmission Provider's most recently available data.

Not considered in the Transition Sorting: The cost of the Interconnection Facilities is not considered when determining a project's eligibility for the expedited process. Affected Systems upgrade costs are also not considered in the evaluation.

Transition Sort Retool Results Provided:

This report includes a list of:

  1. the overloaded flowgates (overloaded facilities + contingency pair) that the project contributes towards
  2. other interconnection projects that may also contribute to the overloaded facility, and
  3. the total estimated cost for any required Network Upgrades.

Important Notes:

Note for Uprate Projects: Per Tariff Part VII, Subpart B, section 304 (B), if a project is an uprate (project relies on the Interconnection Facilities of a prior project) whose base project does not qualify for the expedited process, the uprate also will not qualify for the expedited process, regardless of analysis results.

Notes regarding Results displayed:

  1. Some flowgate overloads that a New Service Request contributes to, but does not contribute enough to meet cost allocation eligibility (per Manual 14A, Attachment B.3), may be reported in this Transition Sort report. These types of flowgates do not affect the classification of the New Service Request as either Expedited Process or Transition Cycle #1 because cost allocation eligibility has not been met.
  2. For projects that were determined to not meet Expedited Process eligibility and are being reprioritized to Transition Cycle #1, not all reinforcements in excess of $5,000,000 may be shown in this report. This report may only display a subset of those reinforcements determined to be in excess of $5,000,000 which would classify the project as not meeting Expedited Process Eligibility. This is not a formal System Impact Study.

Next Steps for your project:

Transition Cycle #1 Rules:

Refer to Tariff Part VII, Subpart B, section 304 (C) for the Transition Cycle #1 Project Rules.

Transition Cycle #1 will start no later than one year from the Transition Start Date (July 10, 2023). Transition Cycle #1 will run simultaneously with the expedited process, however Transition Cycle #1, Phase III will not begin until all expedited process projects have been completed.

Projects that are reprioritized to Transition Cycle #1 will not need to re-apply to the Interconnection Cycle Process. Therefore, there is no Application Review Phase for Transition Cycle #1. The cycle process for Transition Cycle #1 includes three Study Phases and three Decision Points:

  1. Phase I System Impact Study and Decision Point I; and
  2. Phase II System Impact Study and Decision Point II; and
  3. Phase III System Impact Study and Decision Point III

Refer to Tariff Part VII, Subpart D, section 307 for the Transition Cycle #1 study process.

General

The Interconnection Customer (IC), has proposed a Solar generating facility located in the Dominion zone Perquimans County, North Carolina. The installed facilities will have a total capability of 150.0 MW with 90.0 MW of this output being recognized by PJM as Capacity.

Project Information
Queue Number AE2-147
Project Name Swamp 230 kV
Developer Name Aurora Solar LLC
State North Carolina
County Perquimans
Transmission Owner Dominion
MFO 150.0 MW
MWE 150.0 MW
MWC 90.0 MW
Fuel Type Solar
Basecase Study Year 2022

Point of Interconnection

AE2-147 will interconnect with the Dominion transmission system at the Swamp 230 kV substation at the same point of interconnection as the W1-029 project. Attachment 1 shows a one-line diagram of the proposed interconnection facilities.

 

Summer Peak Analysis

The Queue Project was evaluated as a 150.0 MW (Capacity 90.0 MW) injection in the Dominion area. Project was evaluated for compliance with applicable reliability planning criteria (PJM, NERC, NERC Regional Reliability Councils, and Transmission Owners). Potential Summer peak period network impacts are listed below:

Important to Note:

Note for Uprate Projects: Per Tariff Part VII, Subpart B, section 304 (B), if a project is an uprate (project relies on the Interconnection Facilities of a prior project) whose base project does not qualify for the expedited process, the uprate also will not qualify for the expedited process, regardless of analysis results.

Notes regarding Results displayed:

  1. Some flowgate overloads that a New Service Request contributes to, but does not contribute enough to meet cost allocation eligibility (per Manual 14A, Attachment B.3), may be reported in this Transition Sort report. These types of flowgates do not affect the classification of the New Service Request as either Expedited Process or Transition Cycle #1 because cost allocation eligibility has not been met.
  2. For projects that were determined to not meet Expedited Process eligibility and are being reprioritized to Transition Cycle #1, not all reinforcements in excess of $5,000,000 may be shown in this report. This report may only display a subset of those reinforcements determined to be in excess of $5,000,000 which would classify the project as not meeting Expedited Process Eligibility. This is not a formal System Impact Study.
Summer Peak Analysis
Area Facility Description Contingency Name Contingency Type DC|AC Initial Loading Final Loading Rating (MVA) Rating Type MVA to Mitigate MW Contribution Details
DVP 8MDLTHAN-8NO ANNA 500.0 kV Ckt 1 line
314914 to 314918 ckt 1
DVP_P4-2: 557T574
CONTINGENCY 'DVP_P4-2: 557T574'
 OPEN BRANCH FROM BUS 314214 TO BUS 314903 CKT 1   /*6CHCKAHM     230.0 - 8CHCKAHM     500.0
 OPEN BRANCH FROM BUS 314903 TO BUS 314908 CKT 1   /*8CHCKAHM     500.0 - 8ELMONT      500.0
 OPEN BRANCH FROM BUS 314908 TO BUS 314911 CKT 1   /*8ELMONT      500.0 - 8LADYSMITH   500.0
END
Breaker AC 113.56 % 114.68 % 3637.0 C 4170.91 46.28
DVP 8ELMONT-8LADYSMITH 500.0 kV Ckt 1 line
314908 to 314911 ckt 1
DVP_P4-2: 57602
CONTINGENCY 'DVP_P4-2: 57602'
 OPEN BRANCH FROM BUS 314232 TO BUS 314918 CKT 1   /*6NO ANNA     230.0 - 8NO ANNA     500.0
 OPEN BRANCH FROM BUS 314914 TO BUS 314918 CKT 1   /*8MDLTHAN     500.0 - 8NO ANNA     500.0
END
Breaker AC 114.78 % 115.98 % 3351.0 C 3886.49 46.86
DVP 8ELMONT-8LADYSMITH 500.0 kV Ckt 1 line
314908 to 314911 ckt 1
DVP_P4-2: WT576
CONTINGENCY 'DVP_P4-2: WT576'
 OPEN BRANCH FROM BUS 314232 TO BUS 314918 CKT 2   /*6NO ANNA     230.0 - 8NO ANNA     500.0
 OPEN BRANCH FROM BUS 314914 TO BUS 314918 CKT 1   /*8MDLTHAN     500.0 - 8NO ANNA     500.0
END
Breaker AC 114.78 % 115.98 % 3351.0 C 3886.49 46.86
DVP 8ELMONT-8LADYSMITH 500.0 kV Ckt 1 line
314908 to 314911 ckt 1
DVP_P1-2: LN 576
CONTINGENCY 'DVP_P1-2: LN 576'
 OPEN BRANCH FROM BUS 314914 TO BUS 314918 CKT 1   /*8MDLTHAN     500.0 - 8NO ANNA     500.0
END
Single AC 102.35 % 103.34 % 2442.12 B 2523.69 28.12
CPLE/DVP 6HATHAWAY-6ROCKYMT230T 230.0 kV Ckt 1 line
313845 to 304222 ckt 1
DVP_P1-2: LN 2181
CONTINGENCY 'DVP_P1-2: LN 2181'
 OPEN BRANCH FROM BUS 304226 TO BUS 314591 CKT 1   /*6PA-RMOUNT#4 230.0 - 6NASH        230.0
 OPEN BRANCH FROM BUS 313845 TO BUS 314591 CKT 1   /*6HATHAWAY    230.0 - 6NASH        230.0
 OPEN BUS 304226                                   /*6PA-RMOUNT#4 230.0
 OPEN BUS 314591                                   /*6NASH        230.0
END
Single AC 104.7 % 105.9 % 374.0 B 396.07 4.66
CPLE/DVP 6EVERETS-6GREENVILE T 230.0 kV Ckt 1 line
314574 to 304451 ckt 1
DVP_P7-1: LN 2058-2181
CONTINGENCY 'DVP_P7-1: LN 2058-2181'
 OPEN BRANCH FROM BUS 304222 TO BUS 313845 CKT 1   /*6ROCKYMT230T 230.0 - 6HATHAWAY    230.0
 OPEN BRANCH FROM BUS 304226 TO BUS 314591 CKT 1   /*6PA-RMOUNT#4 230.0 - 6NASH        230.0
 OPEN BRANCH FROM BUS 313845 TO BUS 314591 CKT 1   /*6HATHAWAY    230.0 - 6NASH        230.0
 OPEN BUS 304226                                   /*6PA-RMOUNT#4 230.0
 OPEN BUS 314591                                   /*6NASH        230.0
END
Tower AC 127.02 % 129.32 % 478.0 B 618.15 13.36
DVP 8LADYSMITH-8CHANCE 500.0 kV Ckt 1 line
314911 to 314905 ckt 1
DVP_P4-2: SPOTS H1T594
CONTINGENCY 'DVP_P4-2: SPOTS H1T594'
 OPEN BRANCH FROM BUS 314755 TO BUS 314934 CKT 1   /*3SPOTSYL     115.0 - 8SPOTSYL     500.0
 OPEN BRANCH FROM BUS 314916 TO BUS 314934 CKT 1   /*8MORRSVL     500.0 - 8SPOTSYL     500.0
END
Breaker AC 99.45 % 100.2 % 3351.0 C 3357.7 28.87
DVP 6ELIZ CT-6SHAWBRO 230.0 kV Ckt 1 line
314638 to 314647 ckt 1
DVP_P4-2: 246T247
CONTINGENCY 'DVP_P4-2: 246T247'
 OPEN BRANCH FROM BUS 313713 TO BUS 313721 CKT 1   /*6SWAMP       230.0 - 6ACORN HILL  230.0
 OPEN BRANCH FROM BUS 313721 TO BUS 314648 CKT 1   /*6ACORN HILL  230.0 - 6SUNBURY     230.0
 OPEN BRANCH FROM BUS 314537 TO BUS 314648 CKT 1   /*6SUFFOLK     230.0 - 6SUNBURY     230.0
 OPEN BRANCH FROM BUS 314537 TO BUS 919140 CKT 1   /*6SUFFOLK     230.0 - AA1-138 TAP  230.0
 OPEN BRANCH FROM BUS 314569 TO BUS 314575 CKT 1   /*6EARLEYS     230.0 - 6NUCO TP     230.0
 OPEN BRANCH FROM BUS 314575 TO BUS 314590 CKT 1   /*6NUCO TP     230.0 - 6NUCOR       230.0
 OPEN BRANCH FROM BUS 314575 TO BUS 919140 CKT 1   /*6NUCO TP     230.0 - AA1-138 TAP  230.0
 OPEN BUS 313721                                   /*6ACORN HILL  230.0
 OPEN BUS 314575                                   /*6NUCO TP     230.0
 OPEN BUS 314590                                   /*6NUCOR       230.0
 OPEN BUS 314648                                   /*6SUNBURY     230.0
 OPEN BUS 919140                                   /*AA1-138 TAP  230.0
END
Breaker AC 98.38 % 112.01 % 699.0 C 782.95 101.03
DVP 6ELMONT-8ELMONT 230.0/500.0 kV Ckt 1 transformer
314218 to 314908 ckt 1
DVP_P4-2: H2T557
CONTINGENCY 'DVP_P4-2: H2T557'
 OPEN BRANCH FROM BUS 314214 TO BUS 314903 CKT 1   /*6CHCKAHM     230.0 - 8CHCKAHM     500.0
 OPEN BRANCH FROM BUS 314218 TO BUS 314908 CKT 2   /*6ELMONT      230.0 - 8ELMONT      500.0
 OPEN BRANCH FROM BUS 314903 TO BUS 314908 CKT 1   /*8CHCKAHM     500.0 - 8ELMONT      500.0
END
Breaker AC 102.48 % 104.44 % 1050.6 C 1097.25 23.89

Light Load Analysis

At this time light load analysis not required for this project.

System Reinforcements

The table below lists all network upgrades which resolve the identified overloaded facilities in this report.

Important to Note:

Note for Uprate Projects: Per Tariff Part VII, Subpart B, section 304 (B), if a project is an uprate (project relies on the Interconnection Facilities of a prior project) whose base project does not qualify for the expedited process, the uprate also will not qualify for the expedited process, regardless of analysis results.

Notes regarding Results displayed:

  1. Some flowgate overloads that a New Service Request contributes to, but does not contribute enough to meet cost allocation eligibility (per Manual 14A, Attachment B.3), may be reported in this Transition Sort report. These types of flowgates do not affect the classification of the New Service Request as either Expedited Process or Transition Cycle #1 because cost allocation eligibility has not been met.
  2. For projects that were determined to not meet Expedited Process eligibility and are being reprioritized to Transition Cycle #1, not all reinforcements in excess of $5,000,000 may be shown in this report. This report may only display a subset of those reinforcements determined to be in excess of $5,000,000 which would classify the project as not meeting Expedited Process Eligibility. This is not a formal System Impact Study.
  3. Reinforcements previously identified by Transmission Owners for violations on lower voltage facilities are included in this report. Transmission Owner analysis will be updated as part of the Expedited Process and Transition Cycle 1 retools.
System Reinforcements
RTEP ID Title Total Cost
n6314 Rebuild 10.28 miles of 230 kV Line 2021 from Elizabeth City to Shawboro with 2-636 ACSR. $15,420,000
n8149 Add Additional 500/230 kV Transformer at Elmont Substation $22,000,000
n6144 Rebuild 20.5 miles of 230 kV Line #218 from Everetts to Greenville with 2-636 ACSR $39,923,299
(TBD) Rebuild aging double circuit 230kV towers of Everets to Greenvile Line $19,000,000
(TBD) Reconductor one side of Everets to Greenvile 230 kV Line. $350,000
b3122 Rebuild Hathaway-Rocky Mount (Duke Energy Progress) 230 kV Line #2181 and Line #2058 with double circuit. $13,000,000
(TBD) Reconductor 4.73 miles with double 795 ACSS-TW per phase, both circuits, and replace terminal equipment (Hathaway - Rocky Mt 230kV) $27,000,000
b3021 PJM baseline upgrade b3021: Rebuild 500kV Line #581 Ladysmith to Chancellor - 15.2 miles long. $0
b3020 PJM baseline upgrade b3020: Rebuild 500kV Line #574 Ladysmith to Elmont . $0
n5609 Rebuild 41.13 miles of 500 kV Line 576 from Midlothian to North Anna with 3-1351.5 125C ACSR. $127,503,000
n6055 Replace Wave traps at Midlothian and North Anna 500kV substations $300,000

Attachments

Attachment 1: One Line Diagram for Queue Project AE2-147.

AE2-147.PNG

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Conclusion

The Transition Sort load flow retool results indicate that AE2-147 is not eligible for the Expedited Process per PJM Tariff Part VII, Subpart B, section 304 (A) will be reprioritized to Transition Cycle #1. See next steps for your project in the "Introduction" section above.